Category:
Chiral Intermediates
CAS NO:
16731-55-8
Standard:
USP,
-
Potassium metabisulfite is a white crystalline powder widely used as a reducing agent and preservative. Produced via the reaction of potassium carbonate with sulfur dioxide, its molecular formula is K₂S₂O₅ (CAS: 16731-55-8).
Strictly limit usage in sulfite-sensitive asthmatics due to potential anaphylactic reactions. Store in cool, dry areas away from acids to prevent toxic gas release. Wear PPE including gloves and goggles during handling to avoid skin irritation.